Device for use in making sliplasted shoes



Dec. 30, 1952 P. w. SENFLEBEN 2,623,223

DEVICE FOR USE IN MAKING SLIP-LASTED SHOES Filed Jan. 4, 1949 2'SHEETSSHEET .1

fizz/"6n for Paul h/Serzfle ban Dec. 30, 1952 P. w. SENFLEBEN DEVICE FORUSE IN MAKING SLIP-LASTED SHOES Filed Jan. 4, 1949 2 SHEETS-SHEET 2fizz/672 for Paul WSen/Zeben B: h is/izforney Patented Dec. 30, 1952DEVICE FOR USE IN MAKING SLIP- LASTED SHOES Paul W. Senfleben, Maiden,Mass, assignor to United Shoe Machinery Corporation, Flemington, N. 3.,a corporation of New Jersey Application January 4, 1949, Serial No.69,151

4 Claims.

This invention relates to devices for use in shoemaking and isillustrated as embodied in improved devices for facilitating thespotting of platforms or platform units upon slip-lasted shoes.

The present invention consists in the novel features hereinafterdescribed, reference being had to the accompanying drawings, whichillustrate embodiments of the invention, said invention being fullydisclosed in the following description and claims.

In the accompanying drawings,

Fig. 1 is a perspective view of a slip-lasted shoe in the proper stageof its manufacture to receive a platform unit in accordance with mymethod;

Fig. 2 shows in perspective a platform unit which is to be spotted andattached to the shoe illustrated in Fig. 1;

Fig. 3 is a side view, partly in section and partly broken away, showingone illustrative device for use in spotting the platform unit shown inFig. 2 upon the slip-lasted shoe shown in Fig. 1;

Fig. 4-. is a View on line IV-IV of Fig. 3 showing in plan a flexibleU-shaped band and mechanism for varying the width of said band;

Fig. 5 is a view showing in side elevation, partly broken away, theposition of the rear portion of a platform unit cover of the shoeoperated upon by the band at the time said cover is ready to receive,and after it has received the platform unit; and

Fig. 6 shows in side elevation a modified device for use in spottingplatform units in slip-lasted shoes such as shown in Fig. l and also foruse in spotting heels upon slip-lasted shoes to which platforms havebeen attached.

The present invention is described as embodied in devices (Figs. 3, 4and 5) and 22 (Fig. 6) for use in spotting a platform unit 24 (Figs. 2and 5) upon a slip-lasted shoe 26 (Figs. 1, 3, 5 and 6) which is mountedupon a last 28 and has the rear half or heel seat portion 30 of itsplatform unit cover 32 turned right side out and.

forming with a heel seat portion of an insole or sock lining 34 of theshoe a pocket 3'6 (Figs. 1 and 3). The platform unit 24 comprises aplatform 38 and a heel portion 49 which are secured together by staples42 (Fig. 2).

As is well known to those skilled in the art, in the manufacture of theslip-lasted shoe 26 an upper it (Figs. 1, 3 and 5) and the sock lining34 are united, off the last 28, together with the plat form unit cover32 which is subsequently wrapped around the periphery of the platform orplatform unit 2d. The platform unit cover 32 is usually sewed into aseam 46 which joins the sock lining 34 to the upper t l, in such aposition that it is presented inside out and hugging the shoe upper. Inthe illustrative shoe 26 only a front half 48 of the platform unit cover32 is shown as turned inside out or hugging the shoe upper, the rearhalf of said cover being turned right side out as above described.

It is common practice to insert the last 28 in the shoe 26 with thefront and rear halves 48, 38 of the platform unit cover 32 turned backor inside out and hugging the shoe upper 48 and the last, since aplatform unit 24 can be quickly and effectively positioned upon andsecured to the sock lining 34 when the platform unit cover 32 is thuspositioned. However, in view of the difficulty of turning the rear half38 of the platform unit cover 32 right side out around the rear portionof said platform unit 24 from its inside-out position hugging the shoeupper 24 and in open heel shoes also hugging the last 28, I propose wheninserting the last in the shoe to have the forepart t8 only of theplatform unit cover 32 turned back and inside out in hugging relationwith the shoe, the rear half it! of the platform unit cover being leftprojecting right side out and forming the pocket 35 with the sock lining34. When the rear half 36 of the platform unit cover 32 is thuspositioned it will be noted (Figs. 1 and 3) that in an open heel shoethe rear end of the seam 4E5 along which the shoe upper 44, the socklining 3d and the platform unit cover 32 are joined is somewhat wavylengthwise and is spaced from a heel plate 56 of the last 28, the rearend of the seam 66 being displaced somewhat forwardly of the rear end ofthe heel plate of the last. The heel plate 50 which has a U-shapedmarginal edge or rim constitutes the heel portion of the bottom of thelast or the heel seat of the last and will be considered as part of thelast. In making slip-lasted shoes the heel plate 58 is not necessary butmost of the lasts are equipped with such plates so that the lasts may beused on regular work.

Prior to spotting the platform unit 26 upon the sock lining 3 it isdesirable that the rear end of the seam shall be circumferentiallyspread so as to lie in a plane and shall be arranged substantiallyadjacent to but slightly within the edge of the heel plate 59 of thelast 28. To cause, without the use of some suitable device, the rear endportion of the seam it to lie in a plane along the rear edge of the heelplate of the last 28 While spotting the platform unit 24 upon the socklining 34 is a slow and laborious operation. Moreover, when the platformunit 24 is spotted by hand it is the best practice to apply cement to aninner surface 52 (Fig. 2) of said unit only forward of the ball line ofthe said unit because cement rearward of said line interferes with theeffective shifting of the heel end of the platform unit in the pocket 36during the spotting operation. It is of course desirable that cement beapplied if practicable to the entire inner surface 52 of the platformunit 24 so that said unit shall adhere throughout its length to socklining 34.

With the above considerations in view there is provided the device 26(Figs. 3', 4 and 5) which comprises a pedestal 54 (Figs. 3 and 6) havingsecured to it by bolts 56 a horizontal platform or table 58. Formed inthe table 58 is an undercut rectilinear guideway 66 in which slides ablock 62 upon which is mounted a last pin 64 laterally shiftable to aslight extent to accommodate pin holes 68 (Fig. 3) in right and leftlasts. Rotatably mounted upon a pivot pin 68 carried by the block 52 isa pair of rollers I which are constantly urged by a spring I2, oppositeends of which are attached to the block 62 and to the table 58, intoengagement with a pair of arms 74 secured to a fulcrum pin 'IG mountedin bores of a depending flange of a bracket I3 secured by bolts 82 tothe table 58. Also secured to the fulcrum pin I6 is an arm 82. Thebracket i8 may be regarded as part of the table 58.

Mounted for reciprocation in a bore or guideway 84 of the bracket '58 isa rod or carrier 86 the lower end of which is secured to a header 88carrying cap screws 95 fitting in elongated slots 92 of a bifurcatedportion of an arm 94 which is pivoted upon the fulcrum pin 76. Pinned tothe upper end of the rod 86 is a boss 96 (Figs. 3 and of a bar 58 (Figs.3, 4 and 5) to one end of which is riveted the bight portion of aflexible or adjustable U-shaped band or former I00. The rod 86 isconstantly urged upward by a weak spring I02 the upper end of which isattached to the bracket It and the lower end of which is attached to thearm 94. Pivotally mounted upon a threaded pivot stud I24 carried by thebar 98 is a pair of offset levers I06 comprising hand grips m8 and lowerarms III] having at their forward ends holes for receiving pins I I2secured to upper end portions of the band I00. The band I00 may beopened or closed by manually moving the hand grips I28 toward or awayfrom one another. In order to retain the band Hit in its adjustedposition there is pivoted to one of the hand grips I08 a ratchet I I4which is forced by a spring-pressed plunger H6 against a pawl II8carried by the opposite hand grip.

Mounted upon a shoulder screw I (Fig. 3) threaded into the arm 94 is ac-shaped lever 422 pivotally connected by a link I24 to the arm 62.Pivoted to the central part of the C-shaped lever 22 is a rod I26 whichis operatively connected to a treadle I23 pivotally mounted in thepedestal 54 and constantly urge-d upward by a strong spring I39.

After placing the last 28 upon which the shoe 26 is mounted, upon thepin 64 of the slidable block 62, the treadle I28 is depressed causingthe U-shaped band Hill to enter the pocket 36 formed by the sock lining34 and the upstanding rear half 32 of the platform unit cover 32. Suchmotion is effected by rotating the arm 94 against the action of the weakspring I02 about the fulcrum pin [6, the arms I4, which constitute stopsfor the block 62, at this time held against the bracket 78 by the spring12 and accordingly the arm 82 partly because of the presence of thespring 12 and partly because of the construction and arrangement of thetreadle operated arms and levers, being held stationary. As the U-shapedband ISO is lowered it engages the sock lining 34 just within the seam46 and comes to rest. At this stage of the operation the operator ceasesto depress the treadle I28 and manually swings the hand grips I68 towardone another with the result that the lateral lower end portions of theU-shaped band I00 wipe the lateral heel seat portions of the sock liningoutwardly and move to a position just outside the seam, said seamassuming a U-shape substantially the same as the outline of the heelplate 50 of the last 28. After expanding the band I00 the operatorreleases the grips I03, the band being prevented from collapsing by theengagement of teeth of the ratchet H4 with the pawl II8. It will beunderstood that when the sock lining 34 is smoothed or spread out it hasan outline similar to the outline of the bottom of the last.

When the U-shaped band I09 has been suitably adjusted to spread or openup the pocket 36 to its proper shape, depression of the treadle I23 iscontinued, thereby causing counterclockwise rotation (Fig. l) of thefulcrum pin IS in the bracket '58 and accordingly movement of the block62 and the last 28 in a direction I32 until the rear end of the U-shapedband I00 slides over the rear end of the seam 46 and assumes a positionjust above the rear end of the heel plate 56 of the last, as illustratedin Fig. 5 While the rear half 30 of the platform unit cover 32 is thusheld the platform unit 24, which as illustrated consists of the platform38 and the wood heel portion 40 and the entire inner surface 52 of whichis coated with cement, is spotted upon the sock lining 34 of the shoe,the heel seat rim of said unit resting upon the seam. After spotting theplatform unit 24 upon the sock lining 34, the unit is tapped with ahammer to cause said unit to adhere to the sock lining. The treadle I28is then released and is raised by the action of the spring I35), causingthe arms I4 to move back against the bracket I8 and,

assisted by the spring I92, the U-shaped band I30 to move upward to itsraised position from its position between the platform unit cover 30 andthe platform unit 24, the block 62 then moving back under the action ofthe spring 12 to its initial position in which its rollers are inengagement with the arms I4. The guideway 32 of the bracket I8 of thetable 58 may be described as lying in substantially the same plane asand as being inclined to the guideway (it.

By the use of the above-described device 29 the seam along which theupper 44, the sock lining and the platform cover 32 are joined extendssubstantially along the entire edge of the bottom of the last 28 andretains such position while the platform unit 24 is being spotted uponand adhesively secured to the shoe, the U-shaped band I26, in addition,providing entry to the pocket 36 and serving to position the rear endportion of the seam it so that the platform unit 24 may be immediatelyspotted without having to shift portions of the sock lining 3i and therear half 35 of the platform unit cover 32. It will thus be apparentthat the entire inner surface 52 of the platform unit 24 may be coatedwith cement, since during the spotting operation no feeling or shiftingof the platform unit 24 with relation to the shoe is necessary.

When the shoe 23, mounted on the last 28, has been removed from thedevice it is finished by conventional methods well known to thoseskilled in the art.

The above described device which is claimed in applicant's co-pendingapplication Serial No. 284,303, filed April 25, 1952, if desirable, maybe replaced by the modified device 22 (Fig. 6). This modified devicewhich is claimed herein, comprises treadle mechanism such as abovedescribed, the pivot screw I20 being permanently secured to the bracketI8 and the U-shaped flexible band I00 and operating mechanism thereforbeing omitted. In the device 22 there is mounted upon a pivot pin I34,which is mounted in a yoke I 36 secured by bolts I38 to the bracket IS,a pair of arms I40 carrying a bar I42 which when swung into itsoperating position lies on the platform unit and is provided with a faceI44 constructed and arranged to be enga ed by a breast lip I45 of theheel portion 40 of the platform unit 24.

In the operation of the device 22 the last 28 upon which the shoe 28 ismounted is placed upon the pin 64, and the platform unit 24, the innersurface 52 of which has been coated with cement forward of its ballline, is manually inserted in the pocket 36 without pressing theforepart of said unit a ainst the sock lining 34. The operator thendepresses the treadle I23 causin the last 28 to be moved in thedirection I32 with the result that the heel portion 40 of the platformunit 24 is moved downward and rearward with relation to the shoe intoplace. It will be noted that the pivot pin I34 is located a substantialdistance below the heel plates 50 of the last 28. The heightwiseposition of the pivot pin I34 may be varied to vary the verticalcomponent of thrust imparted to the platform unit 24 by the bar I44. Theoperator then taps the forepart of the p atform unit 24 after it hasbeen properly spotted against the sock lining 34, the heel portion 40 ofsaid unit being held in place in the pocket of the rear half of theplatform cover 32.

In the manufacture of slip-lasted shoes the platform 38 is sometimesspotted and cemented to the sock lining 34 as a separate unit while theentire platform unit cover 32, which may be described as a platform andheel cover, is turned inside out in hugging relation with the shoe andthe last. After cementing the platform 38 to the sock lining 34 the rearhalf 30 of the cover 32 is turned right side out to its position shownin Fig. 6. The last 28 upon which the shoe 26 is mounted is thenpositioned upon the pin 64 and a separate heel which is similar to theheel portion 40 of the platform unit 24 and has its inner surface coatedwith fluid cement is placed in the pocket 36 upon the platform. Theoperator then swings the arms I40 about the pivot pin I34 to move thebar I42 against the platform and against the breast lip of the heel anddepresses the treadle I28 causing the platform and the rear half 30 ofthe platform unit cover 32 to be forced against the heel, the heel whenproperly spotted being tapped to secure it to the platform.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a device for spotting a heel upon the 6 heel portion of theplatform of a slip-lasted shoe which is mounted upon a last with itsheel cover turned right side out to form a pocket with the rear end ofthe platform, a support for the shoe on its last, a bar movable intoengagement with the platform and with a lip of the heel inserted in thepocket, and means for effecting relative movement of the support and thebar generally lengthwise of the shoe to force L the bar and the lipportion of the heel together and to press the heel against the platformand against the rear portion of the heel cover in order effectively tospot the heel.

2. In a device for spotting a heel upon the heel portion of the platformof a slip-lasted shoe which is mounted upon a last with its heel coverturned right-side out to form a pocket with the rear end of theplatform, a table provided with a guideway, a support for the shoe onits last mounted in and movable along said guideway, a bar associatedwith said table and movable into engagement with the platform and with alip of the heel inserted in the pocket, and mechanism for moving theshoe support along said guideway to force the bar and the lip portion ofthe heel together and to press the heel against the platform and againstthe rear portion of the heel cover in order effectively to spot theheel.

3. In a device for spotting the heel end of a platform unit on the heelportion of the sock lining of a slip-lasted shoe mounted upon a lastwith its heel cover turned right side out to form a pocket with the socklining, a support for the shoe on its last, a bar movable intoengagement with the platform and with a lip of the heel portion of aplatform unit inserted in the pocket, and means for effecting relativemovement of the support and the bar generally lengthwise of the shoe toforce the bar and the lip of the heel portion together and to press theheel end of the platform unit against the sock lining and against therear portion of the heel cover in order effectively to spot the heel endof the platform.

4. In a device for spotting the heel end of a platform unit on the heelportion of the sock lining of a slip-lasted shoe mounted upon a lastwith its heel cover turned right side out to form a pocket with the socklining, a table provided with a guideway, a support for the shoe on itslast mounted in and movable along said guideway, a bar associated withsaid table and movable into engagement with the platform and with a lipof the heel portion of a platform unit inserted in the pocket, andmechanism for moving the shoe support along said guideway to force thebar and the lip of the heel portion of the platform unit together and topress the heel end of the platform unit against the sock lining andagainst the rear portion of the heel cover in order effectively to spotthe heel end of the platform unit.

PAUL W. SENFLEBEN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 649,379 Sheill May 15, 19001,742,280 Richardson et al. Jan. '7, 1930 2,341,675 Walsh Feb. 15, 1944FOREIGN PATENTS Number Country Date 258,220 Germany Mar. 31, 1913582,500 France Oct. 16, 1924

